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Shirimono
GRAMMAR
〜ばいい
can
should, it'd be good if
Explanation
NOTE

〜ばいい expresses advice or suggestion: 'you should ~', 'it would be good if ~'.

からなければ、ばいいよ。
If you don't understand, you should just ask.
Advice/suggestion
NOTE

〜ばよかった expresses past regret: 'I should have ~', 'it would have been good if ~'.

もっとはやきればよかった
I should have gotten up earlier.
Regret about past
STRUCTURE
V
いい
こまったら、相談そうだんすればいいよ。
Komattara, sōdan sureba ii yo.
If you're in trouble, you should just consult someone.
どちらをばいいですか?
Dochira o kaeba ii desu ka?
Which one should I buy?
もっと練習れんしゅうすればよかった
Motto renshū sureba yokatta.
I should have practiced more.

Practice exercises

1
この薬を飲めいい
It would be good if you took this medicine.
Answer
いい
2
この薬を飲めいい
It would be good if you took this medicine.
Answer
いい
3
こまったら先生せんせい相談そうだんすればいいよ。
If you're in trouble, you should just consult the teacher.
Answer
ばいい
4
あつかったらまどければいいよ。
If it's hot, you should just open the window.
Answer
ばいい
5
からなけれけばいいよ。
If you don't understand, you should just ask.
Answer
けばいいば聞けばいい
6
からなければ、けばいいよ。
If you don't understand, you should just ask.
Answer
けばいい
7
つかれたら、やすめばいいよ。
If you're tired, you should just rest.
Answer
やすめばいい
8
試験しけんかりたければ、もっと準備じゅんびすればいい
If you want to pass the exam, you should prepare more.
Answer
準備じゅんびすればいい
9
体調たいちょうわるかったなら、無理むりせずやすめばよかったのに。
If you weren't feeling well, you should have just rested instead of pushing yourself.
Answer
やすめばよかった